Cannot add custom page template to my child theme

问题

I'm running Wordpress 3.3.1.

I'm writing a child theme that modifies the default twentyeleven theme. Everything seems normal, except that when I add a custom page template, it doesn't appear in the add/edit screen (so I can't use it!).

To elaborate on "normal", here's what IS working: My child theme appears and activates normally. My CSS code (in style.css) is appearing. My files from the template hierarchy are working (ex: front-page.php, page.php)

I've read and reread the codex, and my custom page template file ("coming-soon.php") seems to have the correct header:

<?php
 /*
  Template Name: Coming Soon
 */

So why won't it show up under the "Template" drop-down???

I've added custom templates dozens of times and never had this problem. The only possible difference I can think of is that I'm writing a child theme (even though the codex says this shouldn't matter), or perhaps it's a difference in the newest update of WP.

回答1:

I can't duplicate what you're seeing with a clean install of WordPress 3.3.1. I have a theme with just two files, style.css, containing:

/*
Theme Name:     stackoverflow-8946077
Template:       twentyeleven
Version:        0.0.1
*/
@import url("../twentyeleven/style.css");

and coming-soon.php, containing:

<?php
 /*
  Template Name: Coming Soon
 */

get_header();
?><h1>Coming Soon</h1><?php
get_footer();
?>

the first part of which was copied from your question.

I see the template as expected:

The only things I can think of are to double-check:

the file exists on the server you're running on
the file's in the child template's directory (though it should work if it's in the twentyeleven directory)
there's no file with the same name in the twentyeleven directory, which (I think) would take precedence
the file name ends in .php
you only have a single space between "Template" and "Name:" (the regex used contains the literal Template Name:)

Failing that, the dropdown is populated by the get_page_templates function in wp-admin/includes/theme.php. Might be worth sticking some debug code in there to see if the $templates variable includes coming-soon.php.

回答2:

This is an old thread. But if anyone is looking for solutions now, it may be the issue in WP 4.9. More details: Templates not working properly

回答3:

In my situation, it ended up being the file permissions. I set it to 755 or whatever the standard WP permission is (in regards to security) and it worked!

回答4:

Mine also ended up being the file permissions.

I set it to 777, and it worked like a charm!

来源：https://stackoverflow.com/questions/8946077/cannot-add-custom-page-template-to-my-child-theme

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